Qin Hao, a young man living an ordinary life in the world, unexpectedly signed a "part-time contract" in the underworld due to an accident. From then on, he worked as an ordinary worker in the human world during the day, but performed a series of mysterious duties in the underworld at night. The rules of the underworld are completely different from those of the human world, and the complexity of part-time work is far beyond his imagination. He gradually discovered that the underworld is not only a place where life and death are managed, but there are greater conspiracies and secrets hidden behind it. As he came into contact with mysterious tools such as the Book of Life and Death and the Way of Reincarnation, and even met a group of ghosts and gods with different personalities, Qin Hao's life was completely overturned. In order to survive, he needs to wander between the two worlds, solve numerous mysteries, and find the answer to his own destiny.
